PIDNtupleModule.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#pragma once
 
#include <framework/core/Module.h>
#include <string>
#include <reconstruction/modules/PIDNtuple/PIDTree.h>
#include "TFile.h"
 
namespace Belle2 {

  class PIDNtupleModule : public Module {
 
  public:

    PIDNtupleModule();

    virtual void initialize() override;

    virtual void event() override;

    virtual void terminate() override;
 
  private:
 
    std::string m_outputFileName; 
    bool m_makeFlat; 
    double m_p1; 
    double m_p2; 
    double m_pMax; 
 
    double m_norm;  
    double m_value; 
 
    TFile* m_file;      
    TTree* m_tree;      
    PID::PIDTree m_pid;      
 

    double momDistribution(double p) const
    {
      double f = 1.0 - exp(-p / m_p1);
      return m_norm * f * f  * f * f * exp(-p / m_p2);
    };
 
  };

} // Belle2 namespace